File and prnter sharing under XP-pro covers 4 ports:
I already have tcp 445 open for a certain reason. But now I need to open at least 1 other so that my Norman antivirus "Ndesk.exe" program on my server can function properly.
Norman support told me to open 1 of the other 3. But they could not tell me which 2 of these 3 ports it would be best to keep closed for security reasons.
Which 2 should I keep closed??